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how to stop browser back button using javascript
...o restrict the user from going back in an exam.
I have tried the following script but it stops my timer.
What should I do?
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Drop all tables whose names begin with a certain string
...ALLOCATE cmds
This is cleaner than using a two-step approach of generate script plus run. But one advantage of the script generation is that it gives you the chance to review the entirety of what's going to be run before it's actually run.
I know that if I were going to do this against a product...
How to display loading message when an iFrame is loading?
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$('iframe').load(function(){
$(".loading").remove();
alert("iframe is done loading")
}).show();
<iframe src="http://www.google.com" style="display:none;" width="600" height="300"/>
<div class="loading" style="width:600px;height:300px;">iframe loading</div>
...
PDO closing connection
...this
explicitly, PHP will automatically close the connection when your
script ends.
Note that if you initialise the PDO object as a persistent connection it will not automatically close the connection.
share
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How to request Administrator access inside a batch file
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This script does the trick! Just paste it into the top of your bat file. If you want to review the output of your script, add a "pause" command at the bottom of your batch file.
UPDATE: This script is now slightly edited to suppo...
JavaScript - get the first day of the week from current date
... 1
// multiplied by negative 24
alert(today); // will be Monday
Or as a function:
# modifies _date_
function setToMonday( date ) {
var day = date.getDay() || 7;
if( day !== 1 )
date.setHours(-24 * (day - 1));
return date;
}
setTo...
Select unique or distinct values from a list in UNIX shell script
I have a ksh script that returns a long list of values, newline separated, and I want to see only the unique/distinct values. It is possible to do this?
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Run function from the command line
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The second one is a more general answer. I have a script defined multiple customer functions, and only call one depending on my need
– xappppp
Apr 15 '18 at 4:16
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QUERY_STRING、REQUEST_URI、SCRIPT_NAME、PHP_SELF区别 - 更多技术 - 清泛...
QUERY_STRING、REQUEST_URI、SCRIPT_NAME、PHP_SELF区别通过实例说明PHP中QUERY_STRING、REQUEST_URI、SCRIPT_NAME、PHP_SELF区别。实例：
1、http://localhost/aaa/ （打开aaa中的index.php）
$_SERVER['QUERY_STRING'] = "";
$_SERVER['REQUEST_URI'] = "/aaa/";
$_SERVER['SCRIPT_NAME...
Which commit has this blob?
...
Both of the following scripts take the blob’s SHA1 as the first argument, and after it, optionally, any arguments that git log will understand. E.g. --all to search in all branches instead of just the current one, or -g to search in the reflog, ...